Fog-proof Protection: O-ring seals prevent moisture, dust, and debris from penetrating the scope, ensuring reliable performance under all conditions. Durable Framework: Sturdy construction with rubber armor provides non-slip grip and shockproof protection. Suitable For Astronomy: Designed for astronomy enthusiasts, it offers clear and detailed views of the night sky. Large Eyepiece Design: Ensures comfortable observation, perfect for extended periods of use. High-Quality Optics: Full coated lenses with an average light transmittance of 95% in the 400 nm to 600 nm spectrum range enhance image brightness. Discover the cosmos with our Optical Glass Spotter Scope, crafted for the inquisitive mind. Its fog-proof protection and durable framework guarantee unwavering performance, while the large eyepiece ensures comfort during your celestial adventures.